Shock absorber



March 23 1926.

R. H. LANGDALE SHOCK ABSORBER Filed Feb. 21, 1925 Patented 23, 1936, i

nutren stares Para einen i RUPERT H. `LAN'CvrIDl-LE, OF CICINNATI, OHIO.

sHooK Ansonnnn.

Application led February 21, 1925. Serial No. 10,960.

To all whom, t may concern.' i Be it known that I, RUPERT I-I. IiANomLn, a citizen ot the United States, residing in Cincinnati, county ot Hamilton, and State oit Ohio, have invented certain new and usciful Infiproveinents in Shock Absorbers, ot which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification.

My invention relates to snubbers in geueral and particularly to connecting devices for'snubbers.

Shock absorbers and snubbers, of the type referred to, form a resilient retarding coni nection between the frame of the vehicle and the axles in order to counterbalanee the rebound force of the springs and it is my purpose to provide a pivoted lever with the :tulerum disposed on the vaxle and to have one arm connected with the strapv or connecting member from the shock absorber supported on the frame, which would ordinarily be attached directly to the axle, and to have the other arm hinged to an adjustable rod attached to the `frame. It is further my objectto have this lever of suicient length to act as a shock distributor which transmits the counter rebound action of the snubber or absorber to` the frame in such opposed directions that the spring rebound is very ellectively taken up. It is further my object to provide a simple yand efteetive connecting device to connect one end of the pivoted lever to the shock absorber or snubber and to have the adjustable armadapted to connect with the frame of the vehicle in such position as has been predetermined for the particular type to which it belongs.

Almost all spring shocl absorbers are confined for adjustment to varying the tension of the spring, but in my structure as noted, I provide for an adjustment kso that I am able to vary the resulting action of the rebound shot-lr to whatever `degree has been found to be most effective on the type of car on which my device is being installed, without confining all the adjustment to the spring of the shock absorber. Thus by the location oi connection of my lever to the vehicle l'rauie and the length of the two arms I am able to vary the action of the snubber to the one desired.

to the-.drawing :forming part of this speciication Figure 1 perspective view ofthe device as installed on a trout axle et an automobile.

Figure 2 is a detail View oi the parts ot of securing the rod of the lever to the vehicle` frame.

perspective of one of the a portion V In the drawing I `have shown a portion of a vehicle frame' generally indicated atV 1. The spring is indicated at 2 with the spring shackle clips Sretaining the axle l or" the vehicle.v A shock .absorberis shown at 5 and nL device is adapted for use `with this type of absorber which is commonly called a strap type, spring snubber. The particular type of absorber on the is well known and universally used. v'Ihey lever arm 6 is provided with a boss 7 A hole through the boss retains a bolt' 8 which is threaded through a gripping lug 9 whereV it is held by ak nut. AA holel() passes through this gripping lug and a bolt 10` passing through` the hole retains a cooperati ing lng 11. VThetwolugs gripthe axle and provide a secure pivot point'and journal tor the 'fulcrum 'of thelever.r In case the lever arm is to be attached to1 a. round axle housing the gripping faces of the lugs are, of course, more rounded than are required to grip a channel shaped front axle. rIhe4 front of the lever armis extended `in a rounded faced shoe 12 with extended side members provided with holes 18. An abutment plate 14 to it the lower tace of the shoe is roughened with little pointed lugs 15 and the plate has holes in co-operative aligni'nent with the holes in the shoe. vWhen the strap 16 of the shock absorber 5 is laid across the face of the -shoe and the plate 14- attached with its face in alignment with the face of the shoe and the bolts 17 passed through the'holes and the nuts on the boltsturned down, the strap is very securely hield.; The strap in operation swins away trom the shoe the sheen absorber apri;

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the strap and the rebound results in the strap coming against the curved face. rlhis arrangement prevents wear on the strap.

The trunnioned end 18 of a collar 19 is secured with a bolt or rivet through a hole in a boss at the other end of the lever. Into the collar with alock nut 20 is screwed the threaded end of: a rod 21. The lock nut is adapted to hold the longitudinal adjustment of the rod in the customary manner. The rod extends upwardly to the trame ot the vehicle and a boss 22 in the end' has a hole 23 in it which retains a loose bushing 23A which extends lengthwise out from the faces of the boss so that when a bolt 24 is attached to the frame and the nuts drawn down to secure it there will be no bearing of the rod against the frame. It is esseir tial thatV the end of the rod which is thus journaled in a bushing shall not rub against the frame as this would materially hinder the free action of the lever.

As shown the rod has a wide area on the frame of the vehicle to which it may be in Figure 1. This adjustment varies theV action of the lever upon the flattening of the spring.

The action of the snubbers when connected directly between the vehicle trame and the axle can only be a counterbalancing of the vertical motion of the frame in an upward direction met -by the resistance ont the snubber tending to keep the frame down toward the axle. .Vith my invention it will be quite apparent that the reaction of the device is extended in magnitude of motion by control of the comparative length ot the lever arms. In the form illustrated the magnitude is about doubled.

Having thus described my invention, what I claim as new and desire to secure by Let-ters Patent, is:

1. In a mounting device in combination with a shock absorber on a vehicle, a lever with means for mounting the fulcrum ot said lever on the axle ot the vehicle, the one arm of the lever adapted to retain the resilient connecting member ot the shock absorber, and the other arm oit the lever adapted to retain one end of an adjustable rod with means for pivotally mounting the other end of said rod in a desired position on the frame ot the vehicle.

2. In combination with a shock absorber mounted on the frame of a vehicle, a lever journaled in clamps on the axle of the vehicle andV means adapted to connect the one arm of the lever to the shoclr absmber, and the other end of the lever adapted to journal the end of an adjustable rod, the rod, and means :tor journaling the other end of the rod in the :trame olf the vehicle in a desired position. v

3. ln a shock absorber with a rcsiliently supported member to Connect the lirame and the axle oit a vehicle, a lever connected to the member, the one arm et the lever adapt ed to retain said member, with means tor journaling the fulcrum of said lever on an axle olf the vehicle, and a member pivotally mounted on the other arm. of the lever adapted to engage the frame of the vehicle in a predetermined direction.

il. In a device of the character speci lied, a shock absorber on the vehicle, a lever, one arm` of the lever adapted to be secured to the shock absorber, and the -liulcrurn portion of the lever adapted to be secured to the axle, and the other arm of the lever adapted to extend toward and be'retained on the trame ot the vehicle.

5. ln a device or the character speciied, a gripping shoe on one arm ot a lever pivotally mounted on the axle of a vehicle, and the other arm of the lever connected with a rod to the frame of the vehicle, said gripping shoe comprising a round tace and a plate with a face adapted to engage the round face ol the shoe, a roughened surface on the face of the plate and means for connecting said plate and said shoe in co-operative alignment. Y

6. In combination with a shock absorber extending downwardly in an approximately vertical direction 'from the frame to the axle of a vehicle, a lever and a trunnion and a bar adapted to transmit the vertical stress from said downwardly extending portion of the shock absorber to the frame in a predetermined diagonal direction.

y7. In combination with the extended strap from a snubber on a vehicle, a lever with one arm rounded at the end and adapted to engage said strap, with means tor mounting the ulcrum of said lever on the axle of the vehicle, and means for pivotally mounting a rod on the other arm and means for pivotally mounting the other end of the rod on the frame of the vehicle.

8. ln combination with the extended strap from a snubber on a vehicle, a lever with one arm rounded at the end and adapted to engage said strap, with means lfor mounting the fulcrum of said lci'er on thel axle of the vehicle, and me: ns for pivotally mounting a rod on the other arm and means lor pivotally mounting the other end of the rod on the frame ot the vehicle, whereby said rod will reciprocate freely without ruhbing the frame of the vehicle.

RUPERT H. IndllGDAlilll. 

